Sound Transit is reconsidering their current signage for the light rail stations and has recently issued a survey asking people what they think. They have three pretty similar options, but I want to advocate for the best option which includes a white bar across the top with a big arrow indicating the entrance to the station.
As a transplant to Seattle, I found the signage woefully inadequate and non existent in my first year. I didn't actually realize there was any signage of the current system until this survey... So anything that grabs your attention and lets you know where to go is of the most importance.
There are some fundamental issues that will still be baked into the system, like the naming the train system Link when everyone largely calls it light rail. I hope that over time the Link takes on a brand identity like the T in Boston or the L in Chicago (who clearly wins the clever points). With that being said, below are the options proposed and the survey for you to take.
Link to the actual survey (not good on mobile devices) - http://ow.ly/8Ajy30iaRUM